![](https://coimages.sciencemuseumgroup.org.uk/30/661/large_thumbnail_1927_1281__0001_.jpg)
Lorentz 'Instantaneous light machine', 1807-1820.
- Made:
- 1807-1820
![Lorentz 'Instantaneous light machine'](https://coimages.sciencemuseumgroup.org.uk/341/876/medium_smg00174649.jpg)
Lorentz 'Instantaneous light machine'
Lorentz 'Instantaneous Light Machine', after 1806. This is an oil lamp which is lit by an electric spark acting on a stream of hydrogen gas passing over the wick. Lorentz was not the first to devise this type of lamp lighter; the instrument maker George Adams the Younger mentions Volta, Ingenhouz, and others. In 1823 these machines were superseded by the more convenient Dobereiner lamp.